Native Plants: Irvine vs Santa Ana
How do native plants rules compare between Irvine, CA and Santa Ana, CA?
Irvine and Santa Ana have similar restriction levels.
Irvine, CA
Orange County
Irvine encourages native and drought-tolerant plants through its Sustainability in Landscaping ordinance (IMC Title 5, Division 7) and MWELO compliance. New landscapes must meet water efficiency standards favoring low-water-use species.
View full Irvine rules →Santa Ana, CA
Orange County
Santa Ana encourages the use of native and drought-tolerant plants for landscaping in compliance with the California Model Water Efficient Landscape Ordinance (MWELO). New development and major landscape projects must meet water efficiency standards.
View full Santa Ana rules →Key Facts Comparison
| Fact | Irvine | Santa Ana |
|---|---|---|
| Native Plants | Encouraged through ordinance | Encouraged, not mandated for existing homes |
| MWELO | Required for landscapes over 500 sq ft | - |
| HOA Restriction | Cannot prohibit drought-tolerant plants | - |
| Code Section | IMC Title 5, Division 7 | - |
| Rebates | IRWD turf replacement rebates | - |
| MWELO Threshold | - | Landscapes over 500 sq ft (new/rehab) |
| HOA Restrictions | - | Cannot prohibit drought-tolerant plants |
| State Law | - | Gov. Code §65595; Civ. Code §4735 |
| Permit Required | - | No (for residential replacement) |
Highlighted rows indicate differences between cities.
Irvine FAQ
Does Irvine encourage native plant landscaping?
Yes. The city's Sustainability in Landscaping ordinance and IRWD rebate programs encourage native and drought-tolerant landscaping.
Can my HOA require a green lawn in Irvine?
No. Under California Civil Code Section 4735, HOAs cannot prohibit drought-tolerant landscaping.
Santa Ana FAQ
Can I replace my lawn with native plants in Santa Ana?
Yes. No permit is required to replace a residential lawn with native or drought-tolerant plants. HOAs cannot prohibit this change under California Civil Code Section 4735.
Does Santa Ana require drought-tolerant landscaping?
New development and major landscape projects over 500 square feet must comply with MWELO water efficiency standards. Existing residential properties are encouraged but not required to use drought-tolerant plants.
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